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出 处:《国网技术学院学报》2017年第2期14-17,共4页Journal of State Grid Technology College
摘 要:此文给出了对500kV输电线路典型同塔双回路及单回路工频电场强度进行计算的方法,并计算出不同导线排列方式下(双回逆相序排列和单回水平排列)的工频电场强度数值及变化曲线。在此基础上,分析了不同塔形模块在经过居民区和非居民区时,满足环保要求的架设高度,进一步给出采用同塔双回逆相序排列线路的架设高度明显低于单回路水平排列的结论。通过对比线路架设相关规程规定,为工程建设提供指导,具有较大的经济社会效益。This article provides typical calculation method of power frequency electric field strength of dual-loop and single-loop on the same tower for 500 kV transmission lines and calculates value and change curve of power frequency electric field under different arrangement mode (reversed phase sequence arrangement of dual-loop and parallel arrangement of single-loop) of conductor wire.Accordingly, it analyzes erection height of different tower- shaped model passing residential and non-residential areas, which meets environmental protection requirements, and further concludes that erection height of reversed phase sequence arrangement of dual-loop on the same tower is obviously higher than that of parallel arrangement of single-loop.By comparing relevant regulations of line erection, it provides guidance to engineering construction and features higher economic and social benefits.
关 键 词:500 KV输电线路 工频电场强度 导线排列方式
分 类 号:TM723[电气工程—电力系统及自动化]
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